| From: Bionic (all posts)
Date: 2000-07-04
Subject: Re: HW Q
|
> Hello All,
>
> Some time ago I was on this list, now I subscribed again.
> I had also owned a +/4 before. I dont have any computers
> at the time except a Sony PSX.
>
> I've got some HW questions.
>
> I'm planning to build a simple car/engine tester.
> This means measuring freq of some signals
> (crankshaft rpm and actual speed of car), and
> there would be simple counting (ignition timing) too.
>
> I came to 3 solutions:
> (first 2 are offtopic, sorry. someone may be interested..)
>
> - PC/AT 286: cheap, requires no power supply in the car
> - Z80: a cheap and simple architecture is a Sp*ctrum,
> - third idea (and this is the "ontopic" part): C64 or plus4.
Seriously - forget all these options. What you are looking for is a microcontroller. And for your application a pretty small one for around 3$ should be enough.
I recommend you to check out Atmel AVR RISC, as they come with a pretty good evaluation kit, or microchip PIC.
www.atmel.com www.microchip.com
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